I have recently installed CentOS 6.3
Linux centos 2.6.32-279.11.1.el6.i686 #1 SMP Tue Oct 16 14:40:53 UTC 2012 i686 i686 i386 GNU/Linux
I did observe that my external monitor (TV) is not being detected by the OS. I have used ubuntu / windows earlier and the same setup works fine.
H/W : DELL LATITUDE D620 (without any graphics card)
Appreciate any support.